Removable cylinder for steam-pumps



. UNITED STATES PATENT OFFICE.:1

JOHN H. VAILE, OF DAYTON, OHIO.

REMOVABLE CYLINDER FOR STEAM-PUMPS.

SPECIFICATION forming part of Letters Patent No. 248,069, dated October 1 1, 1881.

I Application filed April 11, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN H. VAILE, of Day ton, in the county of Montgomery and State of pumping-engines; and the object of the invention is to provide a universal]y-adjustable cylinder which can be readily inserted into the exterior cylinder or jacket, and which, when so inserted, will be held perfectly tight and rigid against longitudinal or other strain.

The novelty consists in the construction, combination, and arrangement of the parts composing my improved cylinder, and in the method of its attachment, all as will be herewith set forth.

In the accompanying drawings, Figure 1 is a side elevation in longitudinal central section through the pumping-chamber. Fig. 2 is a side elevation of the removable cylinder. Fig. 3 is a detail View, showing a modification in the construction. Fig. 4 is an end elevation of Fig. 2.

Hitherto in the construction and attachment of removable cylinders of this class the fastenin gs have been either insecure or very troublesome to get at, or else the cylinder was not universally adjustable in its chamber, by which I mean that it had to be inserted in a particular position in order to have theports-at one end fit the corresponding openings in the shell or chamber, and in consequence the cylinder could not be inserted at haphazard and insure the coincidence of these openings. The result was that the cylinders had to be especially made for the particular pumps into which they were to be inserted.

By my improvement a universal cylinder is produced which has to be varied only in size to fit any pump.

In the drawings, A represents any pump, with its valves B, air-chamber O, and cylinderheads D and E.

F is the removable cylinder, having a true cylindrical bore open at both ends, and without any ports or other openings. This cylinder is cast comparatively light, and has at about its middle a double circumferential flange, turned true on both its faces a and b, to form a gasket-joint, as seen in Fig. 1. One end of the cylinder, as seen in Fig. 2, has four or more equidistantintegral tapped and threaded lugs or ears, 0, into which screw-bolts dare fitted, as represented. Instead of these lugs 0, the end of the cylinder may be flanged all around, as shown at e in Fig. 3. Now, to secure the cylinder thus constructed into the main surrounding cylinder of the pump, I interpose an intermediate flange or annular disk, G, between the end of said cylinder and its head E. This head may be bulging in shape, as shown, and it is bolted to the cylinder over the flange G in any suitable manner; but the cylinder F must be inserted and secured before the head E is applied.

At about the middle of the main cylinder is jointface a. Before applying the flange G the cylinder F is inserted with the joint-surfaces aand 1) bearing against the flange H, as seen in Fig. 1. The flange or disk Gis then bolted on securely, and through the opening in this disk the bolts 01 are reached, and are made to bear against the inner side of the flange G, as shown, thus forcing the cylinder F into place and effecting a tight joint with the flange H.

Lock-nutsf upon the bolts (1 may be used to prevent their turning after the cylinder is inserted.

I do not propose to limit myself to the precise location or number of bolts used, for, as seen in Fig. 3, the bolts may be screwed into the flange G and be made to bear against the flange upon the cylinder F, orthey may pass through said flange and be made to bear against the central flange. The only essentials are that an intermediate flange or disk, G, shall be interposed between the main cylinder and its head, to form a bearing resistance to lockthe removable cylinder in its place and effect a Having thus fully described my invention, locking-bolts, of an intermediate disk or flange 10 I claimto form a bearing resistance for said bolts,

1. A removable universally-adjustable cylsubstantially as and for the purpose specified. inder for pumping-engines, having a double i In testimony WliereofI have hereunto set 5 flange at or about its center to form a gasketmy hand.

joint, and held in place by locking-bolts, sub- JOHN H. VAILE. stantially as set forth. Witnesses:

2. The combination, with a removable cyl- PATRICK H. GUNCKEL, inder for pumping-engines, held in place by CHAS. M. PECK. 

